Hepatocellular carcinoma(HCC) is one of the most common devastating neoplasms worldwide with very poor prognosis.Recent studies have identified a CpG is land methylator phenotype(CIMP),which was characterized by simultaneous methylation of multiple TSGs.CIMP has been observed in multiple human malignant tumors including HCC.CIMP also plays a critical role in HCC carcinogenesis,progression,metastasis and recurrence. Therefore,detection of the methylation status of tumor-related genes can provide key information for early diagnosis,molecular classification and predicting prognosis of HCC.

The small-for-size syndrome (SFSS) is widely recognized as one of the most serious clinical complications. It substantially contributes to a poor prognosis after adult living donor liver transplantation. Currently, there is still no consensus on the exact definition and pathogenesis of SFSS. We reviewed the progress on research of pathogenesis of SFSS and put forward some relevant preventive and treatment measures, including donor selection, graft assessment, reduction of high portal vein perfusion, dual grafts technology, advanced molecular medicine and other innovative approaches. Also, we offered some relevant insights into the future research directions of SFSS.

The carcinogenesis of primary liver cancer is a complicated multi-factor, multi-step, multi-gene process.Hepatocellular carcinoma (HCC) is the most important type of primary liver cancer. Allele deletions and inactivation of tumor suppressor genes (TSGs) play critical roles during the carcinogenesis, progress and recurrence of HCC. Loss of heterozygosity (LOH) associated with HCC occurs at most autosomes and the Y chromosome. Losses at chromosomes 1p, 1q, 4q, 8p, 10q, 16q, and 17p have been documented frequently. In this article, we previewed the investigations of clinical significance of LOH, and looked forward to the application of LOH in early detection, therapy, and prediction of prognosis and susceptibility in HCC patients.

The recurrence of hepatocellular carcinoma (HCC) after liver transplantation (LT) has a major impact on outcome, while the guide of treatment of it is lacked until now. so this review will attempt to sum-marize how best to manage recurrent HCC after LT in detail.

0.05). However, a significant higher percentage of CD3+CD25+ T cells was found in stable liver transplantation group as compared to healthy group ( P0.05). There was not found no regular change of serum cytokine s (IL-6, TN F-?) and adhesion molecules (ICAM-1, P-selectin) in 6 liver transplanted patien ts during post-operation from day 1 to day 30, indicating that was associated wi th the different status of patients before or after transplantation. CONCLUSIONS: Our data suggesting that increased levels of ICAM-1 and P-selectin, appears to participate in the processing of immunoregulation to transplanted livers, whereas elevated concentrations of IL-6 appear to be involv ed in the repair of the injury induced by TNF-? in allo-transplanted livers.

Objective To observe the effects of co-transfection of proto-oncogene c-myc antisense oligodeoxynucleotides(c-myc-AODN) and tissue-type plasminogen activator(tPA) gene on intimal hyperplasia of auto-transplantion artery in rabbit. Methods The left and right external iliac artery(length 1.0 cm) of rabbits were cross transplanted. The artery grafts and sutures were respectively soaked in Lipofection, c-myc-AODN, pBudCE4.1/tPA, c-myc-AODN and pBudCE4.1/tPA solution for 15 minutes. Each group were divided into five subgroups(n=5, in each subgroup) according to the sacrifice times(3, 7, 14, 28 and 56 d after operation). Specimens were harvested for pathology, chromogenic substrate test, 3H-TdR incorporation test and immunochemisty coloration study. Result The intimal area, stenosis ratio, 3H-TdR incorporation, PCNA positive cell in c-myc-AODN adding tPA co-transfection group were significantly lower than that of control group(P0.01), and that were lower than c-myc-AODN transfection group and tPA gene transfection group(P0.05). Conclusion Vascular local co-transfection of tPA gene and c-myc-AODN effectively inhibits the proliferation of vascular smooth muscle cell(VSMC) and hyperplasia of intima of the transplanted artery.

AIM: To investigate the possible role of nuclear transcription factor kappa B (NF-?B), Bcl-2, Bax and caspase-3 in etodolac-induced apoptosis of liver tumor SMMC7721 cell line. METHODS: Cell apoptosis was determined by flow cytometry analysis with PI staining and DNA laddering. Expression of Bcl-2 and Bax protein was measured by Western blotting. Caspase-3 activity was evaluated by active caspase-3 apoptosis kit with flow cytometry. NF-?B activation was detected by ELISA-based TransAM~(TM) NF-?B p65/p50 kit. RESULTS: Etodolac, a selective COX-2 inhibitor, stimulated apoptosis in liver tumor SMMC7721 cell line significantly. Flow cytometry showed that the apoptotic rate was 16.3%?3.1%, 19.9%?3.6%, 22.9%?3.2%, 31.2%?3.3% with different concentrations of etodolac (0.25, 0.50, 1.0 or 2.0 mmol/L), while the apoptotic peak did not appear in the control group (0 mmol/L) (P

AIM To establish a high performance liquid chromatographic method (HPLC) to determine the concentration of valsartan in human plasma. METHODS Separation was achieved on the lichrospher C 18 column. The mobile phaseconsisted of pH 3 1 phosphate buffer acetonitrile (53∶47, V/V) was used at a flow rate of 1 0 ml?min -1 . The fluorimetric excitation and emission wavelengths were set at 265 nm and 378 nm, respectively. The plasma samples were acidified with HCl, extracted with ethyl acetate. Separate the organic phase, remove the solvent and then residue was dissolved in mobile phase. RESULTS The retention time of valsartan was 12 5 min. The calibration curves were linear in the range of 5 9～ 2 360 ?g?L -1 . The precision values (RSD) of intra day and inter day were determined to be 2 83%～7 07% and 1 57%～8 41% respectively. The absolute recovery rate were 80 30%?5 13%. The method was applied to determine the peak and valley concentrations in plasma of the hypertensive treated with 80mg valsartan per day. CONCLUSION The assay was sensitive and simple. It is suitable for the study of the pharmacokinetics of valsartan.

Objecfive To study the effect of fibronectin(FN)and arginine-glycine-aspartateserine tetrapeptide (RGDS)on chemotherapy sensitivity of hepatocellular carcinoma(HCC)cell lines.Methods A HCC cell lines 7721 was divided into BSA group(BO),FN group(FO),RGDS group(RO)and FN+RGDS group(FR).Mitomycin-C(MMC)was added into each group with different concentrations for 2 h,12 h and 24 h.MTT assay was used to detect the survival rate of the tumor cell at different time,and fluorescent staining method and flow cytometry was used to detect the tumor cell's apoptosis.Results The survival rate and apoptosis rate was significantly different between each group with the treatment of MMC for 12 h or 24 h,and no statistical difference was found after incubation for 2 h.Conclusions With time FN down-regulates MMC induced apoptosis of the HCC cells.making HCC cells 1ess sensitive to chemotherapy,while RGDS enhances the sensitivity of HCC cells to chemotherapy.

Objective To monitor the dynamic changes of liver and kidney functions in the first week after liver transplantation and to assess the value of liver and kidney functions in predicting patient's survival. Methods clinical data of 161 recipients with benign liver diseases were retrospectively reviewed.Total bilirubin ( TB ), aminoleucine transferase ( ALT), aspartate aminotransferase ( AST), prothrombin time (PT) and serum creatinine (SCr) were recorded and analyzed during the first post-transplant week.The data collected at dl were analyzed in the multivariate COX regression. Results From d1 to d7 post-transplant, the median value changed from 116. 2 mmol/L to 66. 7 mmol/L ( Z = 5.901, P < 0. 01 ) for TB,19.4 s to 15.0 s (Z = 11. 657, P <0.01 ) for PT, 285 U/L to 100 U/L (Z = 12.619, P<0. 01 ) for ALT,264 U/L to 50 U/L (Z =9. 776, P <0. 01 ) for AST, 103.4 mmol/L to 86. 6 mmol/L (Z = 1. 353, P 0. 05 ) for SCr. Post-transplant SCr ( RR = 3. 477, P < 0. 001 ) and TB ( RR = 2. 088, P < 0. 05) levels wereindependent factors influencing patient survival. A prognostic score formula was then established as 1. 276 ×InSCr (mg/dL) + 0. 730 × InTB (mg/dL). Conclusion In a successful liver transplantation,transplanted liver function recovers promtly within one week. SCr and TB levels on post-transplant d1 have good prognostic value.